#include<stdio.h>
#include<string.h>
size_t my_strlen(const char* str)
{
	unsigned int count = 0;
	while (*str != '\0')
		count++;
		return 0;
}
int main()
{
	char arr[] = "abcdef";
		int len1 = strlen(arr);
	printf("%d\n", len1);
	int len2 = strlen(arr);
	printf("%d\n", len2);
	return 0;
}